Re: SSTC battle continues!

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Mitchell" <electrontube-at-sbcglobal-dot-net> 

That sounds quite amazing and I'm really wondering if the circuit wasn't 
"influenced" by all the work that has been done with SSTCs and higher power 
/ longer arcs in the past year.  Can you tell us if it is a "dual resonant" 
system or simmilar?  When was it developed/completed, if you do know?

Tesla list <tesla-at-pupman-dot-com> wrote:
Original poster: "Dr. Resonance"


The DOD got involved, and now it all became classified. The circuit is so
unique that they have applied for a patent on it. All I can say is that it
is different from your circuit --- it was developed by a consulting
physicist/EE from Calif. He works on it from afar.

I have seen the photographs and I will see the actual unit operate on Sept.
25th when we demonstrate the Tesla Rifle and our KREW (Kinetic Resonance
Energy Weapon) to the DOD on that date.

It works and is now delivery 10 ft long sparks --- in pulse mode it can
produce a 10 ft. long spark at under 1 kVA input power.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo WI 53913
----- Original Message -----
From: "Tesla list"
To: Sent: Friday, August 13, 2004 9:30 PM
Subject: Re: SSTC battle continues!


 > Original poster: "Steven Ward"
 >
 > Wait a sec... WHO built this SSTC??? And if so, could i see some more
 > details on it? And how many IGBTs have you gone through so far? Though
 > 5.5kva still isnt all that efficient yet... mine was doing 11' with maybe
 > 4kw. What im most curious about, since i have a weak connection back to
 > Pete through some other people, and Pete contacted me about helping him
 > with some project (i turned it down), is if they are just using my exact
 > design (because the person i know has been asking for schematics and help
 > building it, and he just happens to work for Pete too).
 >
 > And you have seen this SSTC in person right D.C.??
 >
 > Steve
 >
 >
 > >From: "Tesla list"
 > >To: tesla-at-pupman-dot-com
 > >Subject: Re: ! SSTC battle continues!
 > >Date: Fri, 13 Aug 2004 17:25:22 -0600
 > >
 > >Original poster: "Dr. Resonance"
 > >
 > >
 > >We are presently up to 290 cm ( 9.5 ft. ) on 5.5 kVA SSTC. There was a
 > >national press release on our "Tesla rifle" through the Associated Press
a
 > >few weeks ago. We are working with Pete Bitar's Extreme Alternate
Defense
 > >Systems on this project. With solid state technology it's easy to break
the
 > >old rule for classic TCs of 1 kVA input per foot of spark output.
 > >
 > >Our second project is a Kinetic Resonance Energy Weapon (KREW for short)
 > >that hopefully will be ready for a demo at our Open House on Sept. 4th.
 > >
 > >Dr. Resonance
 > >
 > >Resonance Research Corporation
 > >E11870 Shadylane Rd.
 > >Baraboo WI 53913
 > > >
 > > > Yes, it! can be a battle just getting a SSTC to work and stay working
for
 > > > more than 10 seconds. All those problems multiply as the coil gets
bigger
 > > > and more powerful.
 > > >
 > > > But knowledge of practical EE matters like layout, shielding and
grounding
 > > > can help you a lot. These are far more important than they were in
 > >spark-gap
 > > > coiling- it takes a lot less interference to destabilise a
self-resonant
 > > > controller than to burn out an NST :(
 > > >
 > > > In practice, it's probably a good idea to build your SSTC controller,
and
 > > > plan the wires that connect it to power supplies, H-bridge, ground
etc,
 > >with
 > > > the same attention to shielding and grounding as a computer CPU box or
a
 > > > high-sensitivity radio receiver. Radio techniques are quite
appropriate,
 > >as> > > the idea in a driver is to let the power supply and feedback signal
into
 > >the
 > > > box, and let the gate drive out, while keeping all other
 > >conducted/radiated
 > > > interference out.
 > > >
 > > > Possibly the worst offender is ground loops that include your SSTC
driver
 > > > circuit board. These can pick up magnetic field from the
primary/secondary
 > > > coils as well as the large dI/dt caused by an arc to ground.
 > > >
 > > > Another bad source of interference is the dV/dt caused by an arc to
 > >ground-
 > > > as the toroid capacitance is suddenly discharged to ground, it pulls
the
 > > > local RF ground up to a remarkably high voltage. This effect is
discussed
 > >in
 > > > textbooks on commercial lightning protection. It can cause
electrostatic
 > > > coupling of hash! into your control circuits, and even cause the RF
 > >"ground"
 > > > to arc over to your control circuits which are hooked to a different
(AC
 > > > line) ground.
 > > >
 > > >
 > > > Steve C.
 > > >
 > > > best SSTC spark so far: 185cm
 > > >
 > > > Death toll: 9 small IGBTs, 2 fast recovery diodes, 4 MOSFETs, 6
UCC3732x
 > > > driver chips, a pile of 555/74HCxx/LM339/2N3904/etc, a heap of fuses,
and
 > > > one 240V 40W filament bulb burnt out by ground strike current.
 > > >
 > > >
 > > >
 >
 >
 >